One of the injured, a seven-year-old boy, was listed in critical but stable condition Sunday at Johns Hopkins Children's Center. Two of the injured were reported in stable condition at the University of Maryland Shock Trauma Center. Five people were taken to Howard County General Hospital and are listed in stable condition. A ninth person refused medical treatment, police said.

Police did not release the name of the injuried seven-year-old, but on Sunday identified the other victims as Christopher Boone Buchanan, 40, of Odenton; Alessandra Almeida Rodrigues, 19, of Odenton; Julian Douglas Hord, 39, of Blacksburg, S.C.; Kevin George O'Connor, 60, of Columbia; Susan Fleming O'Conner, 59, of Columbia; Kristyn Bristol Loomis, 34, of Columbia; and William Salatore Tarantino, 35, of Columbia.

The crash happened shortly before noon on the eastbound side of Route 175 near Route 108, according to police. The road was partially closed Saturday afternoon.

Police said early indications are that a "medical emergency" may have been the cause of the crash. An investigation is continuing.

A 31-year-old man who was sentenced to 20 years in prison in Baltimore after he pleaded guilty to possessing 5.9 grams of marijuana won an appeal Wednesday invalidating the plea — raising the possibility that he will be released.